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Trigonal trapezohedron
Trigonal trapezohedron
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Type trapezohedra
Faces 6 rhombi
Edges 12
Vertices 8
Face configuration 3,3,3,3
Symmetry group D3d
Dual polyhedron trigonal antiprism
Properties convex, face-transitive
A cube is a special case with square faces

In geometry, the trigonal trapezohedron or deltohedron is the first in an infinite series of face-uniform polyhedra which are dual to the antiprisms. It has six faces which are congruent rhombi.

Trigonal trapezohedrons are a subset of the rhombohedrons. The cube is a special case with square faces.

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